Biochem Flashcards

1
Q

Phenylketonuria enzyme deficiency’s

A

Phenylalanine hydroxylase
BH4

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2
Q

PKU which of the following is most likely deficient :

A

Serotonin
Melatonin
Catecholamines

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3
Q

PKU tx

A

Decrease phenylalanine
Increase tyrosine in diet
Bh4 supplementation
Avoid sweetener aspartame

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4
Q

GiGeorge syndrome (cause)

A

Chromosome 22 microdeletion
Defective neural crest migration into the 3 and 4 pharyngeal pouches.

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5
Q

Tryptophan is a precursor for:

A

Niacin
Serotonin
Melatonin

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